Carbon distribution of algae-based alternative aviation fuel obtained by different pathways

Yang, Xiaoyi; Guo, Fang; Xue, Song; Wang, Xin

doi:10.1016/j.rser.2015.10.045

Cited by 66 publications

(17 citation statements)

References 65 publications

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“…This is the conversion process of algae oil into jet fuel by hydrotreatment (hydrotreated fatty acid and esters, HEFA) [17]. This is a promising route for the production of synthetic paraffinic kerosene (SPK), a bio-jet fuel with improved energy efficiency from algae lipid production, as a means of reducing carbon emissions from the aviation sector [78]. In this process, the oil impurities are removed by hydrogen treatment in a synchronized order.…”

Section: Hydrotreatment/gasificationmentioning

confidence: 99%

Algae biofuel: Current status and future applications

Adeniyi

Azimov

Burluka

2018

Renewable and Sustainable Energy Reviews

346

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An algal feedstock or biomass may contain a very high oil fraction, and thus could be used for the production of advanced biofuels via different conversion processes. Its major advantage apart from its large oil fraction is the ability to convert almost all the energy from the feedstock into different varieties of useful products. In the research to displace fossil fuels, algae feedstock has emerged as a suitable candidate not only because of its renewable and sustainable features but also for its economic credibility based on the potential to match up with the global demand for transportation fuels. Cultivating this feedstock is very easy and could be developed with little or even no supervision, with the aid of wastewater not suitable for human consumption while absorbing CO2 from the atmosphere. The overall potential for algae applications generally shows that this feedstock is still an untapped resource, and it could be of huge commercial benefits to the global economy at large because algae exist in millions compared to terrestrial plants. Algae applications are evident for everyday consumption via foods products, non-foods products, fuel, and energy. Biofuels derived from algae have no impact on the environment and the food supply unlike biofuels produced from crops. However, any cultivation method employed could control the operating cost and the technicalities involved, which will also influence the production rate and strain. The scope of this paper is to review the current status of algae as a potential feedstock with diverse benefit for the resolution of the global energy demand, and environmental pollution control of GHG.

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Section: Hydrotreatment/gasificationmentioning

confidence: 99%

Algae biofuel: Current status and future applications

Adeniyi

Azimov

Burluka

2018

Renewable and Sustainable Energy Reviews

346

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“…The lipid profile of microalgae defined the possible biofuel quantity. For Nannochloropsis, the length of the carbon chain of fatty acids are in the range of C14 -C22 with 16 and/or 18 as the most abundant components [28] [29], which indicated that Nannochloropsis contained the available bioactive nutrient and the appropriate carbon chain for jet biofuel and biodiesel. Jet fuel and diesel are both hydrocarbon molecules but with different carbon number.…”

Section: Uncertainty Analysis In Life Cyclementioning

confidence: 99%

Impacts of the Contradictory Factors in Algal Co2 Sequestration with Sustainable Biofuel Benefit

Liu

2020

SSRN Journal

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Background The purpose would discover the impacts of the contradictory factors in application of algae in CO 2 sequestration with sustainable biofuel benefit. The quantitively assessment model and approach have been established coupling upstream CO 2 source and deliverables with downstream algal biofuel deliverables at the uniform algae level of Nannochloropsis oceanica, which would be benefit for algae biofuel deliverables choice. The functional units have been defined at energy consumption (MJ) per final mass product (algae, jet biofuels by three refining pathways, biodiesels by three refining pathways) and energy consumption (MJ) per final energy yield (algae, jet biofuels, biodiesels). Computational framework is classified into three sub-models, including CO 2 source and deliverable model, algae cultivation and deliverable model, refining process and biofuel deliverable model. This life cycle assessment investigated the following impacts: transportation distances and purification modes with flue gas CO 2 concentrations, lipid content with specific productivity and CO 2 biofixation coupling the nutrient supply, final products including algae, jet biofuel and biodiesel. ResultsCoupling the influence of transportation distances and purification modes on the energy consumption, flue gas with a wide range of CO 2 concentration was compared for two type deliverables including algal CO 2 , edible CO 2 . flue gas with low CO 2 concentration is appropriate for onsite algal CO 2 deliverable within 10km while flue gas with above 95% CO 2 is flexible to transportation distance and appropriate for edible CO 2 deliverable. Specific productivities and CO 2 fixation both comply with negatively logarithmic relationship with lipid contents. Coupling the effects of algae specific productivity and CO 2 evaporation loss, the total CO 2 fixation efficiencies were investigated above 90% at below 28 % lipid but obviously decrease at above 40% lipid. The nutrient supply enhances specific productivity and protein content but with indirect energy consumption. The total energy consumptions of different target products with upstream CO 2 source and algae to downstream biofuel were calculated quantitatively on edible algae and general algae.Conclusions Biodiesel wet and HTL-HRJ jet biofuel performed the priorities in energy consumption.Lipid content and profile defined biofuel deliverables in quantity and quality. The LCA indicated that

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“…In terms of biofuel quality and yield, HTL and pyrolysis produced similar carbon distribution products. The carbon chains of C 4 to C 20 were generated by pyrolysis process, and HTL was preferred with C 4 to C 22 carbon chains, including major of C 6 , C 16 and C 18 (Yang et al, 2016). This was noticeable that high lipid content was not important in these two technologies.…”

Section: Comparison Of Algae-based Technologiesmentioning

confidence: 99%

Can algae-based technologies be an affordable green process for biofuel production and wastewater remediation?

Nhat

Ngo

Guo

et al. 2018

Bioresource Technology

126

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Algae is a well-known organism that its characteristic is prominent for biofuel production and wastewater remediation. This critical review aims to present the applicability of algae with in-depth discussion regarding three key aspects: (i) characterization of algae for its applications; (ii) the technical approaches and their strengths and drawbacks; and (iii) future perspectives of algae-based technologies. The process optimization and combinations with other chemical and biological processes have generated efficiency, in which bio-oil yield is up to 41.1%. Through life cycle assessment, algae bio-energy achieves high energy return than fossil fuel. Thus, the algae-based technologies can reasonably be considered as green approaches. Although

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Carbon distribution of algae-based alternative aviation fuel obtained by different pathways

Cited by 66 publications

References 65 publications

Algae biofuel: Current status and future applications

Algae biofuel: Current status and future applications

Impacts of the Contradictory Factors in Algal Co2 Sequestration with Sustainable Biofuel Benefit

Can algae-based technologies be an affordable green process for biofuel production and wastewater remediation?

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